Founded in 670, this ancient mosque is an architectural time portal.

Recently restored menagerie of Victorian-era beasts.

Eighty million natural history specimens call this gargantuan museum home.

An incarceration museum on the spot of possibly the oldest prison in England.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

One part local history, 99 parts gruesome haunted house.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This stately estate house features a tower covered in a bright, modern mural.

Largest lake in Great Britain measured by surface area.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

A 200-year-old collection of oddities and medical paraphernalia.

The community pools that the community refused to give up on.